Amateur Radio

As long as harmonics are properly filtered

So, those harmonics I mentioned, for the FM broadcast band between 88 MHz and 109 MHz, they're between 176 MHz and 218 MHz.

Guess what?

They're allocated to other services, specifically television and digital audio broadcasting.

but I'm not convinced that it would "get folks interested in radio".

People are put off of amateur radio because so many hams are extremely cop-brained and expect everyone should have to comply to century old rules and norms about how to operate otherwise it's assumed that you're just blowing up the spectrum

I am a licensed amateur and the only thing that changed from when I was unlicensed is that the boomers on the FM voice repeaters around me won't yell at me for interrupting their conversation about their ex-wives or whatever now

Good RF circuitry has never been easier to make/acquire now that we live in the era of semiconductors

low power isn't a thing. My legal amateur radio beacon uses 10 milliwatts and has been heard 13,945 km (8,665 miles) away.

Yeah and my WiFi router blasting 10 times that barely makes it through a couple of walls

Completely dependent on conditions and equipment

I can guarantee if you power up a "low power FM transmission" that the FCC will come and find you and rain hellfire on you.

Also, lmao, there have been some high-profile cases and they have the PIRATE act now but there's still lots of pirate FM stations out there lol

Pirate radio is cool and good